Hi Kai, I'm not enirely sure what it is that you need; but if you want to keep track of the users page navigation history I would suggest to add an entity to your domain model where you can store this information on each navigation action.
Apologies for posting on an old thread, but because I expect many new users still to look through these comments.
I have created a reusable dynamic breadcrumb module without Java actions or external libraries. And I think this is the solution you are looking for.
https://marketplace.mendix.com/link/component/219432